3M Heavy-Bodied Seam Sealer 08308 Two-Part Self-Mixing Automotive Epoxy 200 ml 6 75 fl oz Cartridge Black

A real and solid product that seals body seams on automotive and industrial applications. Paintable and very strong. Read more

Works great, I had plenty of working time with it in 75 degree weather. It bonds great to properly prepared surface. Cures hard in about 8 hrs at 75 degrees. Read more

Used on 2003 Ford F350 roof ditches, old sealer cracked due sun and age. After stripping old paint off roof, I applied two coats of epoxy primer then the seam sealer. When sealer cured, I applied topcoat of paint. Never apply sealer to a acid etching primer, it will not bond. Product works great! Read more

Easy to use 2 part epoxy for sealing large joints. The mixing tip is quite ingenious and mixes 1:1 epoxy as fast as you can work. You will need to purchase a chalk type gun to be effective. Read more

Used to reseal my Land Cruiser’s rain gutters. Consistency is like honey. Self-leveling is great. 8-minute work time is optimistic; move fast. I had to go over a spot I’d missed after my initial bead had begun setting and while new stuff bonded perfectly, it did not self-level quite as nicely as I had hoped. But great product. Read more

Not sure about self-leveling, was expecting something more "fluidy", the viscosity and stickiness is just like honey and as a matter of fact - as epoxy :). It's likely great glue for gluing separate pieces, but not great for filling voids, due to low viscosity and high stickiness. The nozzle with the cartridge is bulky and exponentially grows with the gun, so not great for tight spaces. The proprietary gun is another story for itself... Should have gone with a smaller package with a thumb applicator instead... Read more

I love this stuff because of the fill quality, and it seals up tight and dries very well. Always has a very nice finish to it. Read more

I used this for sealing drip rails on a Ranger... very pleased with the results. It does self level quickly and evenly and looks great. I used about 1/2 of the 200ml tube for both sides and probably put in quite a bit more than the factory did...but one tube would easily do both drip rails on a full size truck I think. Since it is self levelling you must dam up the ends with masking tape and make sure the surface itself is level... and plan to grind out some of it on the ends, easily done with a small file. Overnight cure is better, the data sheet says paintable within a short period but it was still a bit tacky after an hour... rock hard the next day and very easy to finish the ends. Read more